Power transfer circuit



Dec. 29, 1964 N. o. ROSAEN 3,163,735

POWER TRANSFER CIRCUIT Filed May a, 1951 yza INVENTOR. Nils 0. Rowen United States Patent 3,163,785 POWER TRANSFER CIRCUIT Nils O. Rosaen, Detroit, Mich. Rosaen C0., 1776 E. Nine Mile Road, Hazel Park, Mich.) Filed May 8, 1961, Ser. No. 108,547 Claims. (Cl. 310-12) My invention relates to electric current generators and more particularly to a new and simplified power transfer circuit system effecting generation of electrical current at a remote point from the driving source.

A problem in transfer of energy from the power source to the current user is that the conventional generator requires moving elements such as commutators and the like which are apt to produce undesirable current fluctuations as well as being subject to wear and damage. It is true that permanent magnet generators have been devised which require no mechanical moving parts but they involve complexities that make them impractical or inefficient.

An object of my invention is to solve the aforesaid problems by providing a simplified current generator having no mechanical operating parts.

Another object of the invention is to provide a permanent magnet commutatorless generator by moving a magnetic substance through a magnetic field to molecularly align the magnetic particles and arranging a conductor for the induction of current.

For a clearer understanding of my invention, reference may be had to the accompanying drawing illustrating a preferred embodiment of the invention in which like reference characters refer to like parts throughout the several views and in which FIG. 1 illustrates diagrammatically a preferred generating system embodying the invention.

FIG. 2 is a fragmentary diagrammatic cross-sectional view of the generating chamber of FIG. 1.

As illustrated, the present system comprises a fluid reservoir 10, a pump 11, a generating chamber 12, and

fluid conducting conduits 13, 14 and 15 to provide fluid flow in the direction indicated by the arrows.

The fluid itself comprises a heterogeneous mixture of magnetic particles and diamagnetic particles 21, indicated diagrammatically respectively as elongated bodies and round bodies inside the chamber 12, carried in a fluid medium to give mobility. The term magnetic particles is intended for the purposes of this disclosure to mean particles of substance which have the characteristic that they become polarized in the presence of a magnetic field and are attracted to the source of the magnetic field. By the diamagnetic particles it is meant particles of a substance which have the characteristic of being repelled by the source of a magnetic field.

The magnetic particles 20 may be of that group of metals including iron or such iron alloys as Fe Co, preferably very finely powdered and having a density of about 6 to 8 at 20 C. The diamagnetic particles 21 may be of that group of metals including bismuth, also finely powdered and preferably having a greater density than the magnetic particles; bismuths density, for example, being 9.8 at 20 C.

The fluid medium or carrier may be diethylene glycol, ethylene glycol, or a mixture of the two, with corrosion inhibitor and distilled water if needed, having characteristics such that it is not affected by extremes of temperature, protects against rust and corrosion, and will not affect the stability of the two carried elements. Yet such a carrier will provide the composite with fluidity enabling it to be poured, so that it will flow readily and be capable of being pumped through the fluid circuit.

Permanent magnets 22 are disposed adjacent opposite 3,163,785 Patented Dec. 29., 1964 sides of the chamber 12 with like poles directed toward each other as indicated, to provide magnetic fields through which the fluid passes. The influence of the magnetic fields effects molecular orientation, as indicated diagrammatically, of the magnetic particles 20 being carried through the chamber 12.

Conductors 23, shown diagrammatically as rods, extend through the chamber 12 and are disposed normal to the direction of flow of the fluid. Thus, as the oriented particles 20, in themselves each being a magnet magnetized by the magnets 22, move past the conductors 23, an electric current is induced to flow, the current being usable in the openation of any device such as an electric motor 24 connected with the conductors 23.

As indicated in FIG. 2, the conductors 23 need to be connected in series and in such a way that only like windings project through the generating chamber 12.

Since the magnetic particles 20 tend to be attracted to the sides of the generating chamber 12 by the magnets 22, such action will be effectively impeded or counteracted by the tendency of the diamagnetic particles 21 to move away from the magnetic fields, the diamagnetic material being preferably denser than the magnetic material, thereby reducing frictional problems which otherwise would be encountered by the strong attraction of the magnets for unimpeded magnetic particles in the generating chamber 12.

Although I have described only one embodiment of my invention herein, and although shown diagrammatically only, the construction of particular components as well as various changes and modifications, will be apparent to one skilled in the art, without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. A current generating device comprising (a) a housing having a fluid chamber,

(b) a fluid in said chamber,

(c) means effecting unidirectional motion of said fluid in said chamber,

(d) said fluid having magnetic particles therein,

(e) means effecting molecular magnetic alignment of said particles,

( and a conductor disposed in said chamber and extending normal to the direction of movement of said fluid whereby electric current flow is induced in said conductor,

(g) said means effecting particle alignment comprising permanent magnets disposed on opposite sides of said chamber and arranged with like poles directed toward each other.

2. The device as defined in claim 1 and in which said fluid has diamagnetic particles therein of greater density than said magnetic particles to impede a tendency to lateral movement by attraction of said magnets for said magnetic particles.

3. A current generating device comprising (a) a housing having a fluid chamber,

(b) a fluid in said chamber,

(c) means effecting unidirectional motion of said fluid in said chamber,

(d) said fluid having magnetic particles therein,

(2) means effecting molecular magnetic alignment of said particles,

(1) and a conductor disposed in said chamber and extending normal to the direction of movement of said fluid whereby electric current flow is induced in said conductor,

(g) said means effecting particle alignment comprising a permanent magnet disposed closely adjacent said chamber, and

(h) said fluid having diamagnetic particles therein of greater density than said magnetic particles to impede a tendency to lateral movement by attraction of said magnet for said magnetic particles.

4. A fluid for inducing a flow of electric current in a conductor and comprising (a) a non-magnetizable carrier fluid,

(b) first particles immersed in said fluid and having the characteristic of being polarized in the presence of a magnetic field and being attracted to the source of the magnetic field,

() second particles immersed in said fluid and having the characteristic of being repelled by the source of a magnetic field,

(d) the proportions of said first particles to said second particles in said fluid being such that when said fluid is subjected to a magnetic field said first particles will be suspended in said fluid.

5. The fluid as defined in claim 4 and in which said second particles have a density greater than said first particles.

6. The fluid as defined in claim 4 and in which said second particles are in that group of metals including bismuth and in which said first particles are in that group of metals including iron.

7. An induction circuit comprising (a) a source operable to provide a magnetic field,

(b) a fluid and means moving said fluid through said magnetic field,

(c) said fluid including first particles carried therein and having the property of being polarized in said magnetic field and being attracted to said magnetic field source,

(d) second particles carried in said fluid having the property of being repelled from said magnetic field source,

(e) said magnetic field source being arranged and operable to eflect molecular alignment in said first particles whereby said fluid becomes in effect a magnetic field in motion, and

(f) a conductor extending through said fluid whereby movement of said fluid induces electric current flow in said conductor.

8. The circuit as defined in claim 7 and in which said conductor extends normal to the direction of movement of said fluid.

9. A current generating device comprising (a) a housing having a fluid chamber,

(b) a fluid carried in said chamber,

(0) means effecting unidirectional motion of said fluid in said chamber,

(d) means producing a magnetic field Within the path of said fluid,

(e) said fluid having first particles polarized and attracted by said magnetic field producing means and second particles repelled by said magnetic field producing means, and

(f) a conductor disposed in said chamber and extending normal to the direction of movement of said fluid whereby electric current flow is produced in said conductor.

10. The device as defined in claim 9 and in which said means effecting particle alignment comprises a permanent magnet disposed closely adjacent said chamber.

References Cited in the file of this patent UNITED STATES PATENTS 2,787,354 Gill Apr. 2, 1957 2,988,000 Blake June 13, 1961 FOREIGN PATENTS 17,936 Great Britain of 1908 

1. A CURRENT GENERATING DEVICE COMPRISING (A) A HOUSING HAVING A FLUID CHAMBER, (B) A FLUID IN SAID CHAMBER, (C) MEANS EFFECTING UNIDIRECTIONAL MOTION OF SAID FLUID IN SAID CHAMBER HAVING MAGNETIC PARTICLES THEREIN, (D) SAID FLUID MAGNETIC PARTICLES THEREIN, (E) MEANS EFFECTING MOLECULAR MAGNETIC ALIGNMENT OF SAID PARTICLES, 